If you believe in making change from the bottom up, if you believe the measure of change is how many people's lives are better, you know it's hard and some people think it's boring. Speeches like this are fun, actually doing the work is hard.

This is a good deal for the United States, north Korea will freeze and then dismantle its nuclear program. South Korea and our other allies will be better protected. The entire world will be safer as we slow the spread of nuclear weapons. The United States and international inspectors will carefully monitor North Korea to make sure it keeps its commitments. ...Only as it does, so will North Korea fully join the community of nations.

There is nothing more precious to a parent than a child, and nothing more important to our future than the safety of all our children.

My plan after office is to get up and spend that entire first day helping my wife move into her new senatorial office.

Our overriding environmental challenge tonight is the worldwide problem of climate change, global warming, the gathering crisis that requires worldwide action.

Two-thirds of the Iranian people would like to be reconciled with the West. They don't like the fanaticism of the governing religious council. It's the only place in the world where the last six elections have been won by the more progressive candidate, two for president, two for the mayors, two for the parliament. So most people there are sympathetic to the world we Americans want to build, whether we're Republicans or Democrats. On the other hand, almost everybody there wants them to have nuclear power. They see it as a status symbol, and a sense of their own security.

Even as people take pride in their national independence, we know we are becoming more and more interdependent.